Lyman-alpha Blobs 100 kpc scale high-z emission-line nebulae. We think these objects are powered by photo-ionisation and outflows from embedded active galactic nuclei and starbursts, although cold-flows remain a theoretical source of power.

Me and DarwinThis is me and my dog Darwin enjoying the Sun in Looe,
Cornwall (where I went to school), close to my home village of Duloe. Darwin is a 10 month old beagle, and has a penchant for stealing socks.

VisualisationRob Crain and myself have developed Typhoon - software for volume rendering of cosmological simulations and 3D observational data. This is the GIMIC cluster seen at the present day, highlighting the density and temperature of gas.

VisualisationThis is a representation of the velocity field of gas in the disc of a GIMIC galaxy.

VisualisationThis is a combination of millimeter-wavelength interferometric observations of carbon monoxide rotational transitions tracing cold molecular gas in the 'Eyelash': a gravitationally lensed galaxy. The 2D map shows the sub-mm continuum image of the source.

VisualisationAn early rendering of the GIMIC cluster, using 2 components for the density and temperature.